Duplicate Messages from Razberry via Java

[ngarrett]

Hello,

I'll preface this by saying I am not sure if this is a Razberry problem or not. I am running the Razberry with OpenHAB. What we're finding is that multiple messages are received from the Razberry (we think) for a single send. Here's an example:

It looks like the RPi (or something!) is returning multiple responses to a single request -:

For example, right at the beginning of the log, we send out this request -:

Code: Select all

2014-04-13 20:13:44 DEBUG o.o.b.z.i.p.ZWaveController$ZWaveSendThread[:763]- Sending Message = 01 03 00 07 FB 

This is the only time that this request is sent, but the response comes in 4 times

Code: Select all

2014-04-13 20:13:44 DEBUG o.o.b.z.i.p.ZWaveController$ZWaveReceiveThread[:913]- Receive Message = 01 2B 01 07 … 
2014-04-13 20:13:46 DEBUG o.o.b.z.i.p.ZWaveController$ZWaveReceiveThread[:913]- Receive Message = 01 2B 01 07 … 
2014-04-13 20:13:49 DEBUG o.o.b.z.i.p.ZWaveController$ZWaveReceiveThread[:913]- Receive Message = 01 2B 01 07 … 
2014-04-13 20:13:50 DEBUG o.o.b.z.i.p.ZWaveController$ZWaveReceiveThread[:913]- Receive Message = 01 2B 01 07 … 

The whole thread about this is here: https://groups.google.com/forum/#!topic ... Wh_iurrIIo. If you look at known issues, on this post, you'll see this listed again here, with no resolution: https://github.com/openhab/openhab/wiki/Z-Wave-Binding.

Z-Way seems to work perfectly. Any thoughts on whether this could be related to the Razberry?

[PoltoS]

Looks like OpenHUB i not ACKing the packet, so the dongle sned it three times and abandon.

[ngarrett]

Check out this post: viewtopic.php?f=3422&t=20333&start=10

Between this post and the discussion on the OpenHAB forums, we're wondering if it's feasible that an RPi under load can lose these packets, and thus cause network instability. Is this possible/feasible?

I am on 1.5.0-rc3 currently with 37 nodes in my network.

[PoltoS]

I don't think it is possible. But indeed the log suggests this. Since OpenHAB and Z-Way do send ACK, it is probably lost by the Z-Wave chip. Can you try another board/